CVE-2022-1473
openssl: OPENSSL_LH_flush() breaks reuse of memory
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 3, 2022
Updated · August 5, 2026
Description
A memory leak flaw was found in OpenSSL, resulting in TLS servers and clients being halted by out-of-memory conditions, leading to a denial of service. An attacker needs to repeat actions continuously to trigger this vulnerability, resulting in a loss of application availability.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Red Hat has investigated whether possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime